3-formyl-1,1,7,7-tetramethoxy-4-heptanone

3-aminomethylene-1,1,7,7-tetramethoxy-4-heptanone

(R)-6-hydroxy-1,1-dimethoxyheptan-4-one

(2,4-dichloro-5-(piperidine-1-sulfonyl)phenyl)methanol

1-(3,3-Dimethoxy-propyl)-6-iodo-cyclohepta-1,3,5-triene